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19/12/2022 at 00:58
#2035

Participant
J5 is LC power supply so the voltage drops when loaded and it’s intended to power the FIFO Lite.
Plese check U5 on the FIFO Lite, it shouldn’t be very hot.
The display of the FIFO stays on when battery rails are off because it’s powered directly by the LBS-P and not by the batteries.